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Establishment of a Self-Mating Mosquito Colony of Anopheles sinensis From Korea
김세주,Wej CHOOCHOTE,Atchariya JITPAKDI,Anuluck JUNKUM,박수준,민기식 한국곤충학회 2003 Entomological Research Vol.33 No.4
Many Korean entomologists have attempted to colonize Anopheles sinensis Korean strain, a primary malaria vector in Korea, previous efforts, however, were unsuccessful. Only a study that a successful colonization of An. sinensis Korean strain over 5 generations was recently reported. Recently we obtained a self-mating colony from this mosquito strain. The original colony was established from progenies obtained from females collected from So-Rae District, Incheon, Republic of Korea (ROK), and was maintained for 23 successive generations. While the adult females of .rst .ve generations were fed on humans as a source of blood, those of the subsequent 18 generations were fed on white rats as a source of blood. A self-mating colony was initiated from the 9th generation by rearing 200 and 300 newly emerged females and males, respectively, in a 30×30×30 cm cage. The insemination rates increased from approximately 40% to 81% by the 20th generation. Comparisons of biological aspects between arti.cial mating and self-mating colonies are reported.
Establishment of a Self-Mating Mosquito Colony of Anopheles sinensis From Korea
Kim, Se-Joo,Choochote, Wej,Jitpakdi, Atchariya,Junkum, Anuluck,Park, Soo-Joon,Min, Gi-Sik 한국곤충학회 2003 Entomological Research Vol.33 No.4
Many Korean entomologists have attempted to colonize Anopheles sinensis Korean strain, a primary malaria vector in Korea, previous efforts, however, were unsuccessful. Only a study that a successful colonization of An. sinensis Korean strain over 5 generations was recently reported. Recently we obtained a selfmating colony from this mosquito strain. The original colony was established from progenies obtained from females collected from SoRae District, Incheon, Republic of Korea (ROK), and was maintained for 23 successive generations. While the adult females of first five generations were fed on humans as a source of blood, those of the subsequent 18 generations were fed on white rats as a source of blood. A selfmating colony was initiated from the $9^{th}$ generation by rearing 200 and 300 newly emerged females and males, respectively, in a $30{\times}30{\times}30\;cm$ cage. The insemination rates increased from approximately 40% to 81% by the $20^{th}$ generation. Comparisons of biological aspects between artificial mating and selfmating colonies are reported.
Mi Hyun Park,Wej Choochote,Anuluck Junkum,Deepak Joshi,Benjawan Tuetan,Atiporn Saeung,Jae Ho Jung,Gi Sik Min 한국유전학회 2008 Genes & Genomics Vol.30 No.3
Three species of iso-female lines of Korean anophelines ( Anopheles sinensis, An. lesteri, and An. sineroides) were identified based on combinative diagnostic characteristics of morphology, metaphase karyotypes, crossing experiments, and comparison of DNA sequences of ribosomal DNA Internal Transcribed Spacer 2 (ITS2) and further analyzed to determine their genetic relationships. Upon comparison of the F1-hybrids with those of their parent species as the control, differences in viabilities were observed. The viability of F1-hybrids with high larval mortalities, the failure of all pupae to emerge as adults, and the F1-hybrid`s salivary gland polytene chromosomes showing complete asynapsis of all arms from the crosses between An. sinensis and An. lesteri, as well as An. sinensis and An. sineroides, suggested that these three cryptic species exhibited signs of an entirely reproductive isolation.
민기식,Wej Choochote,Atchariya Jitpakdi,김세주,김원,정종우,Anuluck Junkum 한국분자세포생물학회 2002 Molecules and cells Vol.14 No.2
Anopheles (Anopheles) sinensis [Wiedemann (1828)] is a member of the hyrcanus species group, and it has been incriminated as the natural or experimental ma-laria vectors in the Republic of Korea, Japan, China, and Indonesia. In Thailand, however, An. sinensis seems to be of little medical importance. Hybridization tests among the three iso-female lines (isolines) of An. sinensis [i.e., Form A (X, Y1) and Form B (X, Y2) (Thailand strain), and Form B (X, Y2) (Korean strain)] were established based on two distinct types of meta-phase chromosomes and geographical differences. The chromosomal form of the Korean strain was first iden-tified from this study. Results of reciprocal and back crosses indicated that both karyotypic forms of the An. sinensis Thailand and Korean strains were genetically compatible, and provided viable progenies and com-pletely synaptic polytene chromosomes. The sequences of the rDNA internal-transcribed spacer 2 (ITS2) and mitochondrial cytochrome c oxidase subunit II (COII) among the An. sinensis strains were nearly identical to each other, and the intraspecific sequence variability was very low (0.0-0.6%). Sequence comparisons among the cryptic inter-species (i.e., An. sinensis, An. lesteri, and An. yatsushiroensis), however, revealed ex-tensive divergence, and the intraspecific variability ranged from 12.2 to 34.6%. Therefore, it is concluded from these results and previous vector ability studies that the An. sinensis Forms A and B exhibit cytological polymorphic races that have different vector abilities in their transmission of malaria, depending on their geo-graphical locations.